Seiko Cal. 5688 - 780

Released in 1995, the Cal. 5688 with design code 780 was part of Seiko's domestic market collection. Powered by the 5688 caliber with 18j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-7ac2bac75867]

Also known as: Sumo, Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

15.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

120m

Dial Color

Green

Jewels

18j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1995

Related Models

• Seiko 4544-410
• Seiko 6142-736
• Seiko 6130-868
• Seiko 6211-419
• Seiko 4558-115
• Seiko 6124-978
• Seiko 5637-280
• Seiko 7176-803
• Seiko 5618-465
• Seiko 7115-244
• Seiko 6276-210
• Seiko 5289-514